Nothing good will come from continuing to have contact with him. You're pregnant. It's not about you anymore, it's about the safety of your child. This guy is the kind of guy who could have you tied up in the trunk of your car if you're not careful. Please stop talking to him or asking about him. Block him on all of your social networks and make them private. Make it clear to your friends he's not to know about you and ditch anyone who can't respect that.